Cable ops

Seismic survey 05 thru 20 jan by M/V kairei towing 6000 meter long cable vicinity of tracklines between: a.…

North Pacific Ocean · HYDROPAC 5/11

What this record establishes

Archived notice · 2011-01-21 00:01Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XI 2/11 010753Z JAN 11.. Issued 2011-01-01 08:46Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: North Pacific Ocean. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Pacific Ocean →

issued: 2011-01-01 08:46Z
status: Archived notice
authority: NAVAREA XI 2/11 010753Z JAN 11.
NAVAREA: NAVAREA XI · named as the source of this relay
sea: North Pacific Ocean
position: 30.791, 144.042
vessel: M/V KAIREI · 81 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
JAPAN.
1. SEISMIC SURVEY 05 THRU 20 JAN BY M/V KAIREI
   TOWING 6000 METER LONG CABLE VICINITY
   OF TRACKLINES BETWEEN:
   A. 34-52.7N 144-48.1E AND 29-19.7N 147-17.3E.
   B. 34-06.9N 149-11.3E AND 31-50.5N 141-37.0E.
   C. 29-52.6N 141-57.5E AND 27-08.9N 143-09.1E.
   D. 29-42.2N 142-12.3E AND 27-23.7N 143-12.9E.
   E. 27-38.8N 138-30.6E AND 28-29.9N 143-09.3E.
2. CANCEL THIS MSG 21 JAN.

Reading this warning

Seismic survey: A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
Towed array / streamer: Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing: A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
Track line joining: Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · cable & pipeline work

6 within 180 nm since 2001 · 1 in the last 12 months · 0 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

23 cable & pipeline work listed in force · see all

Record snapshot 2026-09-25 00:10Z; source collection times vary.

Cable ops

Cable laying, pipeline and seismic operations. All current cable & pipeline work →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.